Ultrasonic-assisted laser brazing device for structurally-arranged diamond grinding disc

Abstract

The utility model relates to the technical field of diamond millstone brazing, in particular to an ultrasonic-assisted laser brazing device for structurally-arranged diamond millstones, which comprises a workbench, a laser brazing mechanism, an ultrasonic-assisted laser brazing device and a laser brazing device, the top of the workbench is fixedly connected with a placing seat, and the top of the workbench is provided with the laser brazing mechanism; the adjusting mechanism comprises a driving disc frame rotationally connected to the inner wall of the placing seat; according to the device, through a first servo motor, a driving disc frame and a fixing block, synchronous adjustment of the positions of three sets of abutting blocks is achieved, through a spring and the abutting blocks, abutting of grinding disc workpieces of different specifications is achieved, and then the grinding disc workpieces of different specifications are located on a containing base; compared with an existing mode that a positioning tool for the grinding disc workpiece needs to be replaced when the grinding disc workpieces of different specifications are positioned, the mode does not need to replace the positioning tool for the grinding disc workpiece, and the cost of the positioning tool for the invested grinding disc workpiece is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to diamond grinding disc brazing technical field, especially a kind of ultrasonic auxiliary laser brazing device for structured arrangement diamond grinding disc. BACKGROUND

[0002] In the production of structured arrangement diamond grinding disc, first, appropriate thickness of active filler metal is laid on the base material, then diamond grit is placed on the base material covered with active filler metal according to predetermined structure, and then ultrasonic auxiliary laser brazing device is used for brazing preparation. During brazing, laser beam heats active filler metal to make it melt, forming liquid pool, and diamond particles on the surface of filler metal enter the pool and react with liquid filler metal to form firm metallurgical bond. While laser brazing, ultrasonic generator is turned on to promote the overflow of gas in liquid filler metal and the flow of liquid filler metal by means of ultrasonic oscillation, cavitation effect and acoustic streaming effect, so as to break the coarse dendrite and hard brittle phase during the solidification of liquid filler metal, thereby refining the grains, significantly reducing the porosity, shrinkage and shrinkage of brazed diamond joint, and greatly improving the service life of the tool. However, the existing laser brazing device is mainly used for welding of steel plate, and there are few laser brazing devices specially used for small-size diamond grinding disc, especially positioning and clamping mechanism specially used for diamond grinding disc. In order to ensure the quality of laser brazed diamond grinding disc, diamond grinding disc needs to be accurately fixed on the clamp to ensure that their relative positions do not change during welding. If the accuracy of the clamp is not enough, it will cause the deviation of the welding position and affect the welding quality.

[0003] After searching, the patent "A brazing tool for diamond grinding disc" with authorization announcement number "CN215281573U" is used for different specifications of workpieces by installing and replacing different specifications of inner mold body, outer mold body and fixed shaft, to ensure the practicability of brazing tool.

[0004] In the above application, different specifications of inner mold body, outer mold body and fixed shaft are replaced to adapt to different specifications of workpieces, which increases the time of replacing and installing different inner mold bodies, outer mold bodies and fixed shafts, and also increases the investment cost of inner mold bodies, outer mold bodies and fixed shafts.

[0005] Therefore, an ultrasonic auxiliary laser brazing device for structured arrangement diamond grinding disc is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose is in order to solve above -mentioned problem and provide for the structured arrangement diamond grinding disc's ultrasonic auxiliary laser brazing device, has improved the problem of increasing the time length of replacement installation to different internal mould body, outer mould body and fixed axle and has also increased the input cost of internal mould body, outer mould body and fixed axle, realized the multi -size adaptability of diamond grinding disc fixing mechanism, improved the brazing efficiency, reduced production cost.

[0007] The utility model discloses a purpose is in order to solve above -mentioned problem and provide for the structured arrangement diamond grinding disc's ultrasonic auxiliary laser brazing device, has improved the problem of increasing the time length of replacement installation to different internal mould body, outer mould body and fixed axle and has also increased the input cost of internal mould body, outer mould body and fixed axle, realized the multi -size adaptability of diamond grinding disc fixing mechanism, improved the brazing efficiency, reduced production cost.

[0008] Preferably, the inner wall of the placement seat is slidably connected with an annularly distributed long rod, and the end of the long rod is rollingly connected with a ball. Through the long rod and the ball, the center limiting of the grinding disc workpiece placed on the placement seat is realized, thereby ensuring that the three groups of abutting blocks stably abut against the inner side of the grinding disc workpiece, so that the stability of the grinding disc workpiece positioned on the placement seat is ensured.

[0009] Preferably, the surface of the placement seat is fixedly connected with an annularly distributed identification block, the top of the identification block is provided with a plurality of equidistantly distributed through holes, the inner wall of the long rod is slidably connected with a counterweight rod, and the surface of the counterweight rod is clamped to the inner wall of one of the through holes. Through the identification block and the through hole, the observation of the moving distance of the long rod in the placement seat is realized, so that the three long rods can move an equal distance in the placement seat. Through the counterweight rod, the locking of the long rod is realized, so that the stability of the long rod after position adjustment is ensured.

[0010] Preferably, the surface of the abutting block is a rubber member, and the whole abutting block is in the form of a comb plate. Through the abutting block in the form of a comb plate, the abutting block can be deformed when abutting against the inner side of the grinding disc workpiece, so that the abutting block can better abut against the inner side of the grinding disc workpiece of different specifications.

[0011] Preferably, the top end of the placing seat is provided with a limiting hole, and the surface of the fixing block is slidably connected to the inner wall of the limiting hole.

[0012] Preferably, the surface of the fixing block is fixedly connected with two elastic cloths, and the side, away from the fixing block, of the elastic cloths is fixedly connected to the inner wall of the limiting hole. Through the elastic cloths, one of the elastic cloths is stretched and the other is pressed when the fixing block moves, so that the two elastic cloths always cover the limiting hole to prevent impurities from falling onto the driving disc frame through the limiting hole.

[0013] Preferably, the bottom end of the fixing block is fixedly connected with a limiting disc. Through the limiting disc, the fixing block is limited to avoid disengaging from the driving disc frame.

[0014] The beneficial effects of the utility model are:

[0015] 1. Through the first servo motor, the driving disc frame and the fixing block, the positions of the three groups of resisting blocks are synchronously adjusted, and through the spring and the resisting block, different specifications of grinding disc workpieces are resisted, so that different specifications of grinding disc workpieces are positioned on the placing seat. Compared with the prior art, the positioning tool for the grinding disc workpiece does not need to be replaced, and the positioning tool cost for the grinding disc workpiece is reduced.

[0016] 2. Through the long rod and the ball, the grinding disc workpiece placed on the placing seat is centrally limited, so that the three groups of resisting blocks stably resist the inner side of the grinding disc workpiece, thereby ensuring the stability of the grinding disc workpiece positioned on the placing seat. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the placing seat and the adjusting mechanism structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the adjusting mechanism structure of the utility model;

[0020] Figure 4 It is Figure 3 It is an enlarged view of A.

[0021] In the diagram: 1. Workbench; 2. Laser brazing mechanism; 3. Placement seat; 4. Adjustment mechanism; 41. Drive disk frame; 42. First servo motor; 43. Spring; 44. Fixing block; 45. Abutment block; 46. Long rod; 47. Ball bearing; 48. Marking block; 49. Through hole; 410. Counterweight rod; 411. Limiting hole; 412. Elastic cloth; 413. Limiting disk; 5. Ultrasonic mechanism. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In practical implementation: such as Figures 1-4 As shown, an ultrasonic-assisted laser brazing device for structurally arranged diamond grinding discs includes: a worktable 1, a placement seat 3 fixedly connected to the top of the worktable 1, a laser brazing mechanism 2 and an ultrasonic mechanism 5 provided on the top of the worktable 1; an adjustment mechanism 4, the adjustment mechanism 4 including a drive disk frame 41 rotatably connected to the inner wall of the placement seat 3, a first servo motor 42 fixedly connected to the inner wall of the placement seat 3, the output shaft of the first servo motor 42 fixedly connected to the bottom end of the drive disk frame 41, a ring of fixed blocks 44 slidably connected to the inner wall of the drive disk frame 41, a plurality of abutments 45 slidably connected to the inner wall of the fixed blocks 44, a spring 43 fixedly connected to the end of the abutment 45, the other end of the spring 43 fixedly connected to the inner wall of the fixed block 44, the surface of the abutment 45 being a rubber component, the abutment 45 being comb-shaped in general, and a limit disk 413 fixedly connected to the bottom end of the fixed block 44.

[0024] The top of the drive plate frame 41 is provided with annularly distributed arc-shaped holes. The lower end of the surface of the fixing block 44 is slidably connected to the inner wall of the arc-shaped holes. The laser brazing mechanism 2 includes a first electric slide rail located on the top of the worktable 1. A first slide block is slidably connected to the surface of the first electric slide rail. A second electric slide rail is fixedly connected to the top of the first slide block. A second slide block is slidably connected to the surface of the second electric slide rail. A bracket is fixedly connected to the top of the second slide block. An electric push rod is rotatably connected to the upper end of the surface of the bracket. A laser brazing gun is fixedly connected to the telescopic end of the electric push rod. A second servo motor is fixedly connected to the top of the bracket. The output shaft of the second servo motor is fixedly connected to the top of the electric push rod.

[0025] The ultrasonic mechanism 5 includes an ultrasonic generator located on the top of the workbench 1. An ultrasonic amplitude transformer is provided at the rear end of the ultrasonic generator. The surface of the ultrasonic amplitude transformer is fixedly connected to the surface of the placement seat 3, and one end of the ultrasonic amplitude transformer abuts against the surface of the placement seat 3.

[0026] When the diamond grinding disc needs to be produced, the grinding disc workpiece is placed into the placing seat 3, the first servo motor 42 is manually started, the output shaft of the first servo motor 42 rotates to drive the driving disc frame 41 to rotate, the driving disc frame 41 rotates to drive the three fixed blocks 44 to move synchronously, the fixed blocks 44 move to drive the plurality of abutting blocks 45 to move, the plurality of abutting blocks 45 abut the inner side of the grinding disc workpiece at the same time under the action of the spring 43, and the grinding disc workpiece is positioned on the placing seat 3. The first servo motor 42 is manually turned off.

[0027] At this time, the diamond abrasive grains are placed on the top end of the grinding disc workpiece according to a predetermined structured arrangement mode through a mechanical arm or other equipment. At this time, the working procedures of the first electric sliding rail, the second electric sliding rail, the electric push rod, the second servo motor, the ultrasonic generator and the laser brazing gun are set in advance through the control panel. The driving support, the electric push rod, the second servo motor and the laser brazing gun are driven to move to a suitable position through the first electric sliding rail and the second electric sliding rail. The telescopic end of the electric push rod drives the laser brazing gun to move down to a suitable position. After the laser brazing gun is powered on, a laser beam with high intensity, high directivity and high monochromaticity is generated by using the principle of atomic stimulated radiation. The laser brazing gun emits a laser beam to the brazing area of the diamond abrasive grains on the grinding disc. The laser beam is focused into a high-power-density focal point through a focusing mirror, and the optical energy is converted into heat energy. In a very short time, the laser beam forms a local heating area with high energy concentration at the joint, melts the filler metal and makes it wet with the base material. At this time, the ultrasonic generator transmits the oscillation movement, cavitation effect and acoustic flow effect of ultrasonic waves to the placing seat 3 through the ultrasonic amplitude bar, promotes the overflow of gas in the liquid filler metal and the flow of the liquid filler metal, breaks the coarse dendrite crystals and hard and brittle phases during the solidification of the liquid filler metal, thereby refining the grains, significantly reducing the porosity, shrinkage and shrinkage of the brazed diamond joint, greatly improving the service life of the tool, welding the diamond on the grinding disc, ensuring the uniformity and continuity of the weld of the diamond abrasive grains on the laser brazing grinding disc. The ultrasonic-assisted laser brazing device for brazing the diamond grinding disc is a known technology, and will not be described in detail here.

[0028] As shown in Figure 3 The inner wall of the placing seat 3 is slidably connected with a plurality of long rods 46 arranged in a ring shape. The end of the long rod 46 is rollingly connected with a plurality of balls 47. The surface of the placing seat 3 is fixedly connected with a plurality of identification blocks 48 arranged in a ring shape. The top of the identification block 48 is provided with a plurality of through holes 49 arranged in a row. The inner wall of the long rod 46 is slidably connected with a counterweight rod 410. The surface of the counterweight rod 410 is clamped to the inner wall of one of the through holes 49.

[0029] When positioning the larger size grinding disc workpiece, pull the counterweight rod 410 to move upwards, so that the counterweight rod 410 is away from the corresponding through hole 49, and the locking of the long rod 46 is released. At this time, pull the long rod 46 to move to the appropriate position, push the counterweight rod 410 to move downwards in the long rod 46 and be clamped into one of the through holes 49. After observing that the counterweight rod 410 is clamped into the specific through hole 49 of the marking block 48, pull the other two long rods 46 to move to the corresponding positions and be locked, so that the three long rods 46 move to the equal positions, and the grinding disc workpiece placed in the placing seat 3 is centered and limited.

[0030] As shown in Figure 2 The top end of the placing seat 3 is provided with a limiting hole 411, and the surface of the fixed block 44 is slidably connected to the inner wall of the limiting hole 411. The surface of the fixed block 44 is fixedly connected with two elastic cloths 412, and the side, away from the fixed block 44, of the elastic cloth 412 is fixedly connected to the inner wall of the limiting hole 411.

[0031] In use, the grinding disc workpiece is placed into the placing seat 3, so that the surface of the grinding disc workpiece is in contact with the three rolling balls 47, and then the grinding disc workpiece is centered and placed in the placing seat 3. The first servo motor 42 is manually started, the output shaft of the first servo motor 42 drives the driving disc frame 41 to rotate, the driving disc frame 41 drives the three fixed blocks 44 to move synchronously, the fixed blocks 44 drive the plurality of abutting blocks 45 to move, and the plurality of abutting blocks 45 simultaneously abut the inner side of the grinding disc workpiece under the action of the spring 43, so that the grinding disc workpiece is positioned on the placing seat 3. The first servo motor 42 is manually stopped.

[0032] It should be noted that the workbench 1, the first electric sliding rail, the first sliding seat, the second electric sliding rail, the second sliding seat, the electric push rod, the laser brazing gun, the ultrasonic generator, the ultrasonic wave amplitude rod, the second servo motor, the placing seat 3, the counterweight rod 410 and the first servo motor 42 are all relatively mature devices in the prior art, and the specific models can be selected according to actual needs. Meanwhile, the first electric sliding rail, the second electric sliding rail, the electric push rod, the laser brazing gun, the ultrasonic generator, the second servo motor and the first servo motor 42 can be powered by an internal power supply or a commercial power supply, and the specific power supply mode is selected as needed, which will not be described here.

[0033] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ultrasonic-assisted laser brazing apparatus for structuring a diamond abrasive disc, characterized in that, Include: Workbench (1), the top of the workbench (1) is fixedly connected with a placing seat (3), the top of the workbench (1) is provided with a laser brazing mechanism (2) and an ultrasonic mechanism (5); Adjusting mechanism (4), the adjusting mechanism (4) includes a drive disc frame (41) rotatably connected to the inner wall of the placing seat (3), the inner wall of the placing seat (3) is fixedly connected with a first servo motor (42), the output shaft of the first servo motor (42) is fixedly connected to the bottom end of the drive disc frame (41), the inner wall of the drive disc frame (41) is slidably connected with a plurality of fixed blocks (44) distributed in a ring shape, the inner wall of the fixed block (44) is slidably connected with a plurality of abutting blocks (45), the end of the abutting block (45) is fixedly connected with a spring (43), the other end of the spring (43) is fixedly connected to the inner wall of the fixed block (44).

2. The apparatus for ultrasonic-assisted laser brazing of a structured diamond grinding disc according to claim 1, wherein: The inner wall of the placing seat (3) is slidably connected with a plurality of long rods (46) distributed in a ring shape, the end of the long rod (46) is rollingly connected with a ball (47).

3. The apparatus for ultrasonic-assisted laser brazing of a structured diamond grinding disc of claim 2, wherein: The surface of the placing seat (3) is fixedly connected with a plurality of identification blocks (48) distributed in a ring shape, the top of the identification block (48) is provided with a plurality of through holes (49) distributed in equal columns, the inner wall of the long rod (46) is slidably connected with a counterweight rod (410), the surface of the counterweight rod (410) is clamped to the inner wall of one of the through holes (49).

4. The apparatus for ultrasonic-assisted laser brazing of a structured diamond abrasive disc of claim 1, wherein: The surface of the abutting block (45) is a rubber member, and the whole abutting block (45) is in the form of a comb plate.

5. The apparatus for ultrasonic-assisted laser brazing of a structured diamond abrasive disc of claim 1, wherein: The top end of the placing seat (3) is provided with a limiting hole (411), and the surface of the fixed block (44) is slidably connected to the inner wall of the limiting hole (411).

6. The apparatus for ultrasonic-assisted laser brazing of a structured diamond abrasive disc of claim 5, wherein: The surface of the fixed block (44) is fixedly connected with two elastic cloths (412), and the side away from the fixed block (44) of the elastic cloth (412) is fixedly connected to the inner wall of the limiting hole (411).

7. The apparatus for ultrasonic-assisted laser brazing of a structured diamond abrasive disc of claim 1, wherein: The bottom end of the fixed block (44) is fixedly connected with a limiting disc (413).

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